−2 / j +7=−12 the slash is a fraction with the -2 and j i need this simplified asap

j = 2/19

Step-by-step explanation:

Step 1: Subtract 7 on both sides

-2/j = -19

Step 2: Multiply j on both sides

-2 = -19j

Step 3: Divide both sides by -19

2/19 = j

If the question is -2/(j + 7) = 12:

Step 1: Multiply both sides by j + 7

-2 = 12(j + 7)

Step 2: Distribute

-2 = 12j + 84

Step 3: Subtract 84 on both sides

-86 = 12j

Step 4: Divide 12 on both sides

j = -43/6 = -7.167

is only a line? i think so

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v